Floor-surfacer.



No. 870,836. PATENTED NOV. 12, 1907.

O. W. MILES. FLOOR SURFAGBR.

APPLICATION FILED MAILZB, 1907.

j I No. $70,536.

Specification of Letters Patent. Application filed March 25,1907. Serial No. 364.470.

UNITED STATES .PA ENT T QFFIOE oasrsaw. M ILES, 'OF, ANDERS O N TOWlfSHlIf, HAMILTON coUnTY, onto-1 4 I moon-summons. j

. Patented Nov. 1.2, 1,037.

f To all whom it may concern:

Be it known that I, CASPER W. Muss, a citizen of the United States, residing in Anderson township, in the county of Hamilton and State of Ohio, have invented Jcertain new and useful Improvements in Floor-Sursurfaces on floors.-

' 1s arrangement of parts which will permit an accurate ad- Another object is to'provide a rotary cutter for such tool, which will automatically drive dirt and cuttings away from the tool. I

Another object is to provide a simple and eflicient justment for the depth of cut, and prevent excessive cutting.

Another object is to provide improved means for adjusting the tool to and from the work.

' Another object is to provide an improved adjustable and detachable tool guard.

' Another object is to provide means for regulating the depth of out, starting and stopping the cutter and guiding the tool from a-standing position.

It further consists in certain details oi form, combination, and arrangement, all of which will be more fully set forth in the description of the accompanying drawings, in which;

Figure 1 is a perspective view of my improved tool.

-' Fig. 2 is a diagram section on line 12- 0 of Fig. 1 of the form of mechanism for securing the vertical adjustment larly or unevenly.

of the tool. Fig. 3 is an end elevation of one of the rotary tools or cutters. Fig. 4 is a view similar to Fig. 2, showing a modification thereof. Fig. 5 is a side elevation of the tool and adjusting mechanism, showing a modification. Figs. 6, 7, and 8 are detail perspective views of the adjusting mechanism of Fig. 5. Fig. 5) is a detail perspective view of a handle by which the tool may be operated from a standing position, and showing means for stopping and starting the motor and adjusting the depth of cut. Fig. 10 is a perspective view of a modified form of base plate. Fig. 11 is a' detail view of a rotary scraping or'linishing tool. Fig. 12 is a side elevation of a tool for applying sand paper to the work.

In the accompanying drawings. A, represents I the base which rests upon the work and serves to gage the depth of cut and prevent the. tool from cutting irregu- As shown in Fig. l, the base consists of a metal plate having a plane surface next to the work, and is intended to slide over the work. This plate may terminate as shown in Fig. 1, at one side of the cutter, or as indicated in Fig. 5 may have fingers, a, at opposite edges-projecting oh opposite sides of the cutter.

the

armature being journaled at opposite ends in hearings in the heads, I), b".

D, represents.thc rotary tool which is secured to the end of the armzfture shaft, outside the head, b. For rough Work, I employs cutter head armed with knives, d, which shave or cut away the projecting or uneven parts of the work. The arms, d, are shaped so as to create an air current when rotating, which'current blows away the cuttings and grains of sand-and dirt, leaving a clean surface for the plate, A, to travel over, andassisting to keep the knives sharp. After an even surface has been attained, or where the grain of the wood is such that the cutter of Fig, 3, cannot be used to advantage, I employ a tool, D, having arms similar to Fig. 3, but with blades, d, set to scrape instead of cut, the surface. smoother and more even surface may be attained. If desired, the surface may be finally polish ed by the use of tool, D, the periphery of which is armed with a strip of sand paper, 11 i In order to protect the user against accidental injury,

By the use of the scraping tool, a

I provide a guard, E, over the rotary cutter and in order to permit the tools to be readily removed and'replaced, I hinge'the guard at e, by means of a rod, or'pin,

to the head, and loclcdt in position at c, by means of a rod, or pin, or other suitable latch mechanism, Thus, by unlatching the guard at e, it may be turned up out of the way, or by removing the hinge-rod, the guard may be detached. p

The motor, B, is hinged at one side to plate, A, on a line parallel with the axis of the armature shaft. On the opposite side, as shown in Figs. 1 and 2, I provide adjusting screw, F, journaled to the motor, B, and engaging a threaded sleeve, f, which is hinged to the plate, A, atf.

f represents a pdinter, to indicate on a scale, f on sleeve f the depth of out which will be taken by the knives or scrapers. mcut is effcctcd by means of an eccentric, G, which is pivotally attached to the motor.

1;, represents a link hingcdlo plate, A, atone end, and fitting over the eccentric, G, at the opposite end.

9, represents a collar seating on the rectangularshoulder, g", of the eccentric, G, to hold the link in place. A handle, {1 serves to turn the collar, 11, and eccentric, G, on their pivot, and a' spring actuated pin, g, enters As shown in Figs. 5 to 8, the adjust-' one of the holes, 11 in the link, to lock the parts to the 1 provide along hand-bar, K, at the upper end of which are handles, 1:, k, which enable the operator to guide the tool wherever desired. The handle, k, is split arid provided with a switch lever,l, which springs open automatically to stop the motor when released, and which is closed to start the motor by grasping the harrdle. As shown in Fig. 4, arocl, m, is journaled to the underside of bar, K, which rod carries a beveled gear in mesh with a bcveledgear, m, on the screw rod, F, to vary the depth of cut. Where the eccentric, G, is employed, the handle, '9 and its spring pin, are n11 tinted at the upper end 01' a rod, M, Fig. 9 and the opposite end oi'rod, M, is connected by a link, n, with a stud, n, on the collar, 9. v

The mechanism herein specified is capable of considerable'modification, without departing from the prin- 1 ciple of my invention.

Having described my invention, what I claim is:

1 In a mechanism of the character indicated, a plate adapted to rest against the face of the work, an electric motor hinged thereto on a line parallel with the axis of the armature shaft, a rotary tool carried by said a 'mature shaft, and means for adjusting said motor on said hinge relative to said plate.

' 2. In a mechanism of the character indicated, an electric motor, a rotary cutter-head having fan-shaped arms to' drive dirt and obstructions from thepath of the knives, a.

plate to contact with the work, and adjusting mechanism adapted to adjust said plate to and from the axis of said cutter. r

3. in a mechanism of the character indicated, an electric motor, a rotary tool mounted upon the armature shaft of said motor, said tool being so shaped as to create an air current tohiow the cuttings and dirt from-the path of the knives, an open-work guard embracing said tool, said guard being hinged to one side of the motor frame and locked to said frame at its. opposite side, a plate to contact with the work and mechanism for adjusting said plate to and from the axis of rotation.

4. In a mechanism of'tlie character indicated, an electric motor, a rotary tool mounted on the armature shaft of said motor, a plate contacting with the work, mechanism to adjust said plate to and from the axis of said armature shaft, :1 handle-bar connected at one end of said motor and provided with handles at its opposite Or-free end, and means located near the free end of said handle-bar to actuate said adjusting mechanism. j

5. In a mechanism of the character indicated, a plateadapted to rest against the face of the work, a'motor frame hinged to said plate, a rotary tool mounted upon an axle parallel with said hinge, and actuated by said motor, means for adjustingsaid motor on said hinge relative to said plate.

(5. In a mechanism of the character indicated, a plate adapted to rest against the face of the work, a 'motorcar- T. In an article of the character indicated, a plate comprising a frame and a series of rollers journaled thereto, said rollers to contact with the work and normally hold 'rled by and adjustable to and from "said plate, ands.

the plate slightly away from the work, a motor carried by said plate and adjustable relative thereto, and a rotary cutter carried and driven by said motor.

8. In a mechanism of the character indicated a plate adapted to .contact wlth the work, a motor carried by said plate, arotary tool driven by said motor and carried by and adjustable relative to said plate, a handle-liar adapted to guide said tool from a standing position and carrying :1 its free end mechanism for shifting said tool.

In testimony whereof I have aflixed my signature in presence of 'two witnesses.

' CASPER W, MILES.

Witnesses:

WALTER F. Mummy,

Aenns McConMAcK. 

